Anti-inflammatory Activity of the Constituents of the Roots of Aralia continentalis

被引:51
作者
Lim, Hyun [1 ]
Jung, Hyun Ah [2 ]
Choi, Jae Sue [2 ]
Kim, Yeong Shik [3 ,4 ]
Kang, Sam Sik [3 ,4 ]
Kim, Hyun Pyo [1 ]
机构
[1] Kangwon Natl Univ, Coll Pharm, Chunchon 200701, South Korea
[2] Pukyong Natl Univ, Div Food Sci & Biotechnol, Pusan 608737, South Korea
[3] Seoul Natl Univ, Inst Nat Prod Res, Seoul 151742, South Korea
[4] Seoul Natl Univ, Coll Pharm, Seoul 151742, South Korea
关键词
Aralia continentalis; Continentalic acid; Kaurenoic acid; 7-oxo-ent-pimara-8(14); 15-diene-19-oic acid; Cyclooxygenase; Nitric oxide synthase; Anti-inflammation; CORDATA THUNB; KAURENOIC ACID; INDUCTION; RAT;
D O I
10.1007/s12272-009-1909-3
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
To assess the anti-inflammatory activity of the constituents of the roots of Aralia continentalis, ent-pimara-8(14),15-diene-19-oic acid (continentalic acid, pimaradienoic acid, compound I), 7 beta-hydroxy-ent-pimara-8(14),15-diene-19-oic acid (compound II), 7-oxo-ent-pimara-8(14),15-diene-19-oic acid (compound III), 15 alpha,16 alpha-epoxy-17-hydroxy-ent-kauran-19-oic acid (compound IV) and ent-kaura-16-en-19-oic acid (kaurenoic acid, compound V), their inhibitory effects against cyclooxygenase-2 (COX-2)-catalyzed PGE(2) and inducible nitric oxide synthase (iNOS)-catalyzed NO production by lipopolysaccharide-treated RAW 264.7 cells were examined. Among the compounds tested, compound III and V moderately inhibited NO production. In addition, compound III weakly inhibited PGE(2) production, while treatment with compounds II and IV at concentrations of up to 100 M had no significant effects. Conversely, compound I only weakly inhibited PGE2 and NO production. To elucidate the mechanism by which these changes occurred, the iNOS down-regulating capacity of compound III was investigated. Western blot analysis and an electrophoretic mobility shift assay demonstrated that compound III weakly inhibited COX-2 and iNOS expression at 50-100 mu M, and inhibited NF-kappa B activation. When in vivo anti-inflammatory activities of compounds I, III and V were examined, intraperitoneal injection of 4-100 mg/kg of compound I and V significantly inhibited carrageenan-induced paw edema in mice, whereas compound III did not. Taken together, the results of this study suggest that some constituents of A. continentalis, especially compounds I, III and V, exert significant anti-inflammatory activity, which suggests that these constituents contribute, at least in part, to the anti-inflammatory action of the roots of A. continentalis.
引用
收藏
页码:1237 / 1243
页数:7
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